| 摘要 |
PROBLEM TO BE SOLVED: To provide a luminaire capable of lighting a wide range at a stroke by automatically oscillating or rotating a condensing mirror. SOLUTION: A luminous flux is emitted in one direction from a light source 4 fixed at the lower portion of a support mount 5. A reflecting mirror 1 disposed at an angle in such a manner as to refract and reflect the luminous flux in an arbitrary direction is fixed to a holding frame 2 oscillatable on a fulcrum coaxially with the optical axis of the luminous flux. The reflecting mirror 1 is oscillated via a link mechanism disposed in a part of the support mount 5, so that the luminous flux at an irradiation surface draws a linear locus between two points. Otherwise, the reflecting mirror fixed to the holding frame in such a manner as to refract and reflect the luminous flux similarly emitted in an arbitrary direction at an angle to move a reflecting luminous flux in a bowl-like fashion, thereby enabling the locus of the luminous flux at the irradiation surface to draw a circle. |
